About the document
- Who files:
- Parents, adoptive parents, foster carers and guardians of a disabled child living legally in Spain
- Where to submit:
- Social Security e-office, post, or an INSS centre (CAISS) by appointment
- Authority:
- Instituto Nacional de la Seguridad Social (INSS)
- Country:
- Spain
- Category:
- Social Security and pensions
- How to fill:
- Chat in any language → original form → PDF
- Price:
- form free · chat €8 per document
- Last updated:
- Official source:
- https://www.seg-social.es/descarga/es/41083
What this document is
PF-5 (“Solicitud de prestación por hijo a cargo con discapacidad”) is the official form of Spain’s National Social Security Institute (INSS). It is used to claim the allowance (asignación económica) for a child or foster child with a disability.
By law (LGSS, art. 351) the allowance covers a child under 18 with a disability of 33 % or more, and a child aged 18 or over with 65 % or more.
Who files and where
- a parent, adoptive parent, foster carer or guardian who lives legally in Spain and supports the child; the child must also live in Spain (LGSS, art. 352);
- for an adult child with support measures, a de facto guardian, curator or judicial defender may file — section 1.3 is for them;
- online at the Social Security e-office (certificate or Cl@ve); without an e-signature, the hand-signed form by post or at an INSS centre (CAISS) by appointment;
- shared and non-shared children go on separate applications, as the form’s instructions require.
What the form asks
- applicant: DNI/NIE, Social Security number, address, capacity, marital status, large-family certificate;
- work and benefits of the applicant and of the other parent;
- up to three children per sheet: personal details, who they live with, income, disability degree, need for third-party help;
- tax residence, address for letters, IBAN of a Spanish account; a separate account if an adult child receives the benefit directly.
What to bring
- DNI or NIE and TIE of the applicant, the other parent and children over 14;
- the child’s disability certificate (IMSERSO or the regional body) or proof that it was applied for;
- family book (libro de familia) or birth certificates; for large families — the large-family certificate;
- in case of divorce, separation or guardianship — the court ruling or guardianship document.
How to fill it in with FoxDocs
- Tell the chat, in any language, about yourself, the other parent and the child.
- The assistant fills the boxes in capitals, ticks the NO/SÍ boxes and splits the IBAN into its cells.
- Download the PDF, check it, sign it and file it with the INSS.
Source
INSS form PF-5 (V.21, 2026-03-31): seg-social.es — PF-5. Benefit conditions — LGSS, arts. 351–352: BOE — Real Decreto Legislativo 8/2015 (LGSS). Checked 2026-10-09. This is not legal advice.